The selectmen didn't have the citizen arrested, they asked the police chief to remove him. The citizen was told by the chief many times to stop talking and leave the room. The citizen refused to leave and kept talking. The chief had no choice but to arrest him. He would not have been arrested if he would have followed the chiefs instructions.
Why do some citizens have to harass public servants with comments like that gentleman made? I know, free speech...but gee whiz.